The Siemens 3TK2805-0BB4 is a contactor safety combination designed for use in safety circuits, such as EMERGENCY STOP applications and the monitoring of protective equipment like safety guards. It features an enabling and signaling circuit with 5 normally open (NO) contacts and 1 normally closed (NC) contact, operating on a 24 V DC power supply. This device ensures that, in the event of a fault in the contactor relay, the safety circuit remains operational, adhering to DIN EN/IEC 60204-1 standards.

Key Features:

• Safety Compliance: Meets DIN EN/IEC 60204-1 standards, ensuring reliable performance in safety-critical applications.

• Fault Monitoring: Continuously checks the opening and closing of contactor relay contacts during each machine cycle to maintain safety integrity.

• Versatile Application: Suitable for EMERGENCY STOP circuits and monitoring of safety guards in various industrial settings.

Technical Specifications:

• Model Number: 3TK2805-0BB4

• Contact Configuration: 5 NO + 1 NC

• Control Voltage: 24 V DC

• Operation: DC operation

• Standards Compliance: DIN EN/IEC 60204-1

• Dimensions: [Information not specified]

• Weight: Approximately 2.116 lb (0.96 kg)

Applications:

• EMERGENCY STOP Circuits: Provides immediate disconnection of power in emergency situations.

• Protective Equipment Monitoring: Ensures safety by monitoring devices such as safety guards and interlocks.

Siemens - 3TK2805-0BB4 - Contactor Safety Combination for Safety Circuits